For the last 6 months, I have been having troubles keeping any snails or crabs alive in the tank. Tank has been up for 2 or 2 1/2 years, and water quality checks out good. I couldn't figure out what was happening until I saw the Goby grab a crab and shoot across the tank and into his cave with it.
Is this normal??? LOL. I think not. I have probably lost 30+ crabs and 20+ snails and mysteriously there are no shells anywhere to be seen except for the supports for the Goby / Pistol Shrimp cave entrances.
Just curious what you guys think. Also, how the heck can I catch this guy without ripping all the rocks out of the tank? I hate to do this because it's a reef tank with corals and other growth all over the rocks.
Wish I could get this sucker on film! P.S. He is probably over 5 inches long.. pretty huge for a 46-gallon tank.... he's been eating well.